package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.domian.Category;
import com.itheima.reggie.domian.Dish;
import com.itheima.reggie.domian.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


/**
 * @author 何须浅碧深红色
 * @date 2022/9/13
 */
@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
   @Autowired
   private DishService dishService;
   @Autowired
   private SetmealService setmealService;
   @Autowired
   private CategoryService categoryService;
    @Override
    public void remove(Long id) {
//        LambdaQueryWrapper<Category> categoryLambdaQueryWrapper = new LambdaQueryWrapper<>();
//        categoryLambdaQueryWrapper.eq(Category::getId,id);
//        categoryService.
//        if (){
//
//        }
//        1，如果关联了菜品，删除失败
        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        dishLambdaQueryWrapper.eq(Dish::getCategoryId,id);
        int count = dishService.count(dishLambdaQueryWrapper);
        if (count>0){
            throw new CustomException("此分类关联了菜品，无法删除");
        }
//        2，如s果关联了套餐，删除失败
        LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();
        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,id);
        int count1 = setmealService.count(setmealLambdaQueryWrapper);
        if (count1>0){
            throw new CustomException("此分类关联了套餐，无法删除");
        }
//        3，如果都没有则删除成功
        super.removeById(id);


    }
}
